Peace Palace — The Carnegie Dossier
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The Hague, Diplomatic CenterPeace Palace — The Carnegie Dossier
📍 The Hague, Diplomatic Center·🕐 2h30 – 3h·📍 ~3.5 km
Also available as:HistoricalMysterySpy thriller

Peace Palace — The Carnegie Dossier

Uncover the hidden clauses in Andrew Carnegie's secret dossier that threaten to unravel the Peace Palace's legacy. Decipher codes across diplomatic landmarks to expose a conspiracy sabotaging global peace.

📱 1 to 10 phones · 1 team per phone · Independent codes

Difficulty
·From age 12 years
Starting point :Carnegieplein, in front of the Peace Palace

In 1903, steel magnate Andrew Carnegie donated $1

8
stages
~3.5 km
route
2h30 – 3h
at your pace
🚶
walking

Peace Palace — The Carnegie Dossier

🎭Your Mission

You are an American diplomatic attaché, on a confidential mission in Zuid-Holland in 1913.

You arrive at Carnegieplein, before the new Peace Palace, inaugurated on September 18

Dive into the most secret diplomatic investigation of 1913, when Andrew Carnegie funded the first international tribunal in History in the heart of The Hague.

Far more than an escape game

A game, a guided tour and a heritage guide — all in one

You're not just buying an escape game. You're carrying a living guide — historical anecdotes, forgotten legends, key monuments, hidden architecture — unfolding as you go.

🏛️
Hidden historical gems

At each stop, places ordinary guides miss — secret façades, sculpted crests, alleys steeped in history.

📜
Anecdotes & legends

Every riddle is rooted in a real historical fact or local legend. You leave with dozens of stories to tell.

🏗️
Architecture & heritage

Learn to read buildings — flamboyant Gothic, Baroque, Art Deco — like a real art historian, while having fun.

🚶‍♀️
Immersive wandering

Walk through the city like a novel's character — every alley becomes a stage, every square a theatre.

🎙️
Immersive audio narration

A voice walks with you at every step, tells the story of each place, reads clues, adds a cinematic feel.

📲
Yours forever

Keep access to the guide & game for 1 year. Come back any time, share it with friends.

« You will not leave this city the way you entered it. »

How does it work?

🏛️
Outdoor escape game

Explore the city on foot solving puzzles based on real historical facts. No locked room — the city is your playground.

📱
On your smartphone

No app to download. Play directly from your browser. Guided step by step, at your own pace.

👨‍👩‍👧‍👦
Unlimited players

One purchase per phone is enough. Play with family, friends or as a couple — everyone participates.

🎯
Augmented reality

Point your phone at the façade: a historical character appears and speaks to you in your language. Golden letters magically write themselves on the wall to reveal the puzzle answer.

🤖
AI that helps you

Stuck? Progressive personalised hints. The character repeats the puzzle on demand — at your own pace.

🗣️
32 languages

French, English, German, Spanish, Italian + 27 other languages auto-translated by AI.

🎟️

Want to go deeper?

Places tied to your adventure — optional entries, totally up to you · per person

Guided tour of the Vredespaleisoptional
€12. Exceptional access to the International Court of Justice courtrooms and the library of 1 million legal works.
Optionnel
/pers.
Panorama Mesdag Museumoptional
€15. 120-meter circular canvas painted in 1881 by Hendrik Willem Mesdag, the world's largest painting depicting Scheveningen.
Optionnel
/pers.
Herring tasting in Scheveningenoptional
€8. Centuries-old culinary tradition at harbor stalls, served with raw onions and pickles according to authentic Dutch recipe.
Optionnel
/pers.
Royal carriage rideoptional
€35. 45-minute circuit through royal gardens and diplomatic quarter aboard a replica of carriages used by Queen Wilhelmine.
Optionnel
/pers.
Budget if you do them all / pers.~0
« Peace through Law »
Official motto of the Vredespaleis / Peace Palace, established 1913

The story that haunts this land

Carnegieplein welcomes you to The Hague's diplomatic quarter, the nerve center of international institutions since 1913. This square bears the name of Andrew Carnegie, the Scottish-American steel magnate who revolutionized global philanthropy. Born in 1835 to a working-class Scottish family, Carnegie built an industrial empire before devoting his fortune to education and world peace. His donation of $1.8 million USD for the Vredespaleis represented a colossal sum then, equivalent to more than 50 million euros today. You discover the first traces of this pacifist ambition that would transform The Hague into the world capital of international arbitration.

The Vredespaleis stands before you, Louis-Marie Cordonnier's masterpiece inaugurated on September 18, 1913, by Queen Wilhelmine of the Netherlands. This French architect, designer of the Lille Opera, blended Beaux-Arts style with Renaissance influences to create this temple of international justice. Since 1946, the building has housed the International Court of Justice, direct heir to the First Hague Peace Conference of 1899 that brought together more than 100 delegates from 26 nations. This first conference, initiated by Tsar Nicholas II of Russia, laid the foundations for disarmament and conflict resolution through arbitration rather than war.

Lange Voorhout leads you along this 400-meter historic promenade, lined since the 18th century with noble palaces and diplomatic residences. This 17th-century artery was the scene of secret negotiations that led to the creation of the international arbitration system. The neoclassical facades hide the salons where European and American diplomats debated the future of world peace. Carnegie himself walked these cobblestones during his visits to The Hague, convinced that the grandiose architecture of the government quarter would legitimize his revolutionary project of supranational justice.

The Ridderzaal and Binnenhof immerse you in Dutch governmental history since 1280, the ideological foundation of the Vredespaleis. This Gothic Knights' Hall, used since 1904 for the annual Throne Speech, symbolizes the parliamentary tradition that inspired Carnegie. The Binnenhof complex, seat of the Dutch Parliament since 1815, embodies this democratic governance that the philanthropist wanted to extend worldwide. The Hofvijver, a 5.5-hectare artificial basin created in the 13th century, reflects these institutions in its calm waters, a metaphor for the peace Carnegie dreamed of establishing between nations.

Your investigation concludes between Paleis Noordeinde and Paleistuin, where the monarch's official residence since 1984 dialogues with the 8-hectare public park designed in classical French style. This 16th-century Dutch Renaissance architecture, rebuilt in the 17th-18th centuries, testifies to the institutional stability that seduced Carnegie. 800 meters from the Vredespaleis, this royal palace anchors the pacifist project in European monarchical legitimacy. You leave with an understanding of this Carnegiean vision: transforming The Hague into a laboratory of world peace, where arbitration would definitively replace brute force in international relations.

1899
First Hague Peace Conference
1913
Inauguration of the Peace Palace
1946
Establishment of the International Court of Justice (ICJ)

The Route

8 stages through the city

The gameplay: AR, camera, hidden clues

📱Search clues with your cameraRA

At each stop, open your phone camera: an augmented reality character appears on the façade and speaks your language. Hunt the clue — it materializes as golden letters on the real wall or floats in front of you. When you find it, the phone vibrates, an AR chest opens and reveals your answer fragment. 8 stops, 8 clues to find with the camera, 1 final code.

🎭

The stops on your route are a surprise. You'll discover them one by one, guided by your phone, starting from the meeting point.

8
original puzzles
24
min of narration
🪙 24
TripCoins granted
16
GPS waypoints

How does it work with a group?

One phone = one team. Pick the number at checkout (1 to 10).

🧍
1 phone

Solo, or a group sharing the screen. One team, one code.

👥
2-3 phones

Family, couple, or 2-3 teams competing. Each phone has its own code and its own score.

👨‍👩‍👧‍👦
4 to 10 phones

Friends, bachelor/bachelorette, small office outing — each their own code, each plays at their own pace. Tiered pricing then €6 flat per phone from the 6th.

  • All codes are independent — play at the same time OR separately, each team advances at its own pace.
  • Leaderboard between your teams + global game leaderboard — each score appears in the public ranking.
  • More than 10 phones or need a personalized quest? Discover custom tours.
🕒No date to pick · Code valid 1 year · Play whenever you want

Ready to live this adventure?

Get my code · 12€

No calendar booking. Code sent immediately by email.

🔒 Secure payment · Code in 5 min · Free cancellation

Practical info

Starting point
Carnegieplein, in front of the Peace Palace
Directions on Google Maps
🕐
Duration
2h30 – 3h
At your own pace
👥
Players
Unlimited
From age 12
📍
Distance
~3.5 km
The Hague city center
Accessibility
Partial
Mostly flat route, some cobblestones
🌐
Languages
17 languages
Built-in translation

Why this route?

🤫

Secret Diplomacy

Delve into the intricacies of international negotiations and hidden documents.

🏛️

Architecture of Peace

Decipher the symbols and messages carved in the stone of The Hague's iconic buildings.

🌐

International Investigation

Follow in the footsteps of great diplomats and philanthropists who shaped international law.

Decipher the legacy of a visionary for world peace.

The fate of nations is in your hands.

★ Innovation 2026

9 features nobody else has

OddballTrip combines gamified play, augmented reality and AI. All our competitors deliver 1 or 2 of these angles. We deliver all 5.

🎁

AR treasure chest

A golden chest floats in front of the monument. Tap → opening animation → reveals a secret message.

🧙

AR narrator character

Point your phone at the façade: a knight, witch, monk, sailor, detective or ghost appears full-screen and speaks to you in your language with their dedicated ElevenLabs voice (each character has their own unique voice) — your living guide.

📜

Magic golden letters

At the puzzle climax, golden letters magically write themselves on the real wall — that's the puzzle answer. An unforgettable visual effect.

🎧

Written + audio narration

Every puzzle available as text AND voice-over: read at your own pace or listen eyes-free while walking. Great in groups and for accessibility.

🧭

360° radar + vibration

A mini-radar shows the target even behind you, and the phone vibrates when you aim in the right direction.

📸

Heritage storytelling

Every puzzle weaves in real historical facts (architecture, era, anecdotes). You learn by playing — like a gamified audioguide.

🤖

Progressive AI hints

3 levels of AI-generated help: vibe → where to look → answer format. You're never stuck.

🤳

AR selfie memento

At the end of the game, capture a selfie with OddballTrip banner + mascot, shareable on Instagram, TikTok.

📱

Zero app to install

PWA technology: open the link, it plays in your browser. Same quality as an app, no App Store hassle.

Frequently asked questions

Q01Do I need to download an app?

No, never. You get a link, you click, it plays in your browser. That's the point of a PWA: same as an app, without the hassle.

Q02Does it work offline?

GPS yes (handled by your phone). Maps yes (tiles cached). AI and hints need an intermittent 4G connection.

Q03How long does a game take?

1 h 30 to 2 h 30 depending on your pace. The timer runs but only for the leaderboard — you play at your own tempo.

Q04What happens if I'm stuck?

You get 3 levels of hints per puzzle (increasing penalty). If truly stuck, you can skip the step (45-min penalty but you keep going).

Q05What's the age range?

From 12 without an adult, from 6 with an adult reading puzzles. Works for families, couples, friend groups, companies.

Q06What if my city isn't in the catalogue?

Pre-register or contact us — we'll email you as soon as your city is live.

Q07What is augmented reality exactly?

Point your phone at the façade: a historical character appears full-screen and speaks to you in your language. At the puzzle climax, golden letters magically write themselves on the real wall — that's your answer. After each puzzle solved, a treasure chest floats in front of you. Seeing is believing.

Avis des aventuriers

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Your turn to play

Dive into the most secret diplomatic investigation of 1913, when Andrew Carnegie funded the first international tribunal in History in the heart of The Hague.

12€
1 phone
23€
2 phones
33€
3 phones
42€
4 phones
50€
5 phones
56€
6 phones
62€
7 phones
68€
8 phones
74€
9 phones
80€
10 phones

1 purchase = 1 phone. Play several on the same device.

🕒No date to pick · Code valid 1 year · Play whenever you want
Get my code · 12€

No calendar booking. Code sent immediately by email.

🔒Secure payment · Code in 5 min · Free cancellation

🪙+24 TripCoins granted with your booking

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